The tourist trips to the Antartic are shallow tangents, and are a mask. The reality is the distance to the "edge" is too great for any tourist or even a military trip. Im guessing some thing in the range of 7000 km. Or more. Even if something made it out there they wouldnt be able to come back. And any plane crash in that far out zone will never be seen

The true depth of the antartic has never been mapped out. It could even be upto 10000 kms or more to the "wall". The designers of tbis terrarium would have made it as difficult for you to reach the edge as it is for you to go up into "space".

The boindaries are clear and fenced in; vaccum in the sky, salt in the sea water, frigid ice stone in rim.

Enjoy your trip to the "antartic" . Would you like some popcorn and orange juice?